Update README.md

Author: emmanue1

README.md

@@ -109,3 +109,11 @@ decompiler.decompile(loader, printer, "path/to/YourClass");
 
 String source = printer.toString();
 ```
+
+## License
+Released under the [GNU GPL v3](LICENSE).
+
+## Donations
+Did JD-GUI help you to solve a critical situation? Do you use JD-Eclipse daily? What about making a donation?
+
+[![paypal](https://raw.githubusercontent.com/java-decompiler/jd-gui/master/src/website/img/btn_donate_euro.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=C88ZMVZ78RF22) [![paypal](https://raw.githubusercontent.com/java-decompiler/jd-gui/master/src/website/img/btn_donate_usd.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=CRMXT4Y4QLQGU)